Which two statements are true?

You just implemented RSTP in your Layer 2 network. Which two statements are true? (Choose two.)

A.
Switch ports in the alternate port role operating in indirect-recovery mode can immediately transition to the root port role and forwarding state when a failure occurs without waiting for the timer to expire.

B.
Switch ports in the alternate port role operating in shared mode can immediately transition to the root port role and forwarding state when a failure occurs without waiting for the timer to expire.

C.
Switch ports in the alternate port role operating in point-to-point mode can immediately transition to the root port role and forwarding state when a failure occurs without waiting for the
timer to expire.

D.
Switch ports operating as edge ports automatically transition to the forwarding state, even directly after a failure and recovery scenario.